Glastron /Carlson Boats

I got that Scimitar for George, it was a good project, it had a good transom and the floor had been replace two years before we bought it.  I cleaned it out and built the seats,  installed the new motor, carpet, and re-built the trailer.  George had the upholstry done by another shop, and the paint as well.

Have you seen the project page of boat.

http://olered.com/GeoScimitar.html

Hi There Eric,  good to see ya here.

I did make a few of changes to the transom on this one, when I re-built it, I raised the "X" dimention 2 1/2 inches that really came out almost 3" when it was done, I also moved the transom back 5" and changed the rake of the transom from 12 to 8 degrees .   I removed almost 200 pounds of weight off the motor by putting on the new aluminum high performance manifolds, they weigh 54 pounds, the others weighed 160 pounds, changed out the 47 pound flywheel for a 4 1/4 pound flex-plate.  I had to machine the coupler to fit into the end of the crank and precision drill holes for it to bolt to the flex-plate, it seems to be holding up ok, but I can tell why they run a flywheel,  I get a little vibration in turns and holeshots. The little high torque started was 9 pounds lighter than the old one, aluminum high volume water pump, Edelbrock aluminum intake manifold and a new Edlebrock performer carb.  It's firing on the early style Thunderbolt ignition, 32 degrees total advance.

The motor came out of a 2000 Chevy 3/4 ton truck  that was totaled out, it's a 4 bolt main motor with the thick cylinder walls.  I had the motor bored .060, the heads milled .030 and the deck just cleaned up about .010  speed pro forged pistons, steel rings.  The heads are the vortec heads, but the machine shop cut down the quides a little and installed "Z" springs and retainers, stainless steel Manley valves and teflon seals.   The cam is a custom grind,  but it is the same grind as the Chevy "Hot Cam" that comes in the Corvettes but the shop advanced the grind 2 degrees, it is a roller cam.    I'm running the 1.5 rockers to reduce the lift of the cam some,  it's pushing 497 lift and 287 duration with a power range from 1500 to 5500 rpm.  I asked the guys at the machine shop how much hp they thought this motor would produce and they agreed that it is probably 425 / 435 hp but thats just an educated guess,  it would be interesting to know for sure.

The drive is a 1996 Gen II ,  it was a 1.84 ratio when I first got it, so I ran a 15 1/8 X 27 pitch Solas prop on it and was running 63 mph that way.  I had the drive re-built with 1.47 ratio gears and am running a 14 1/4 X 23 PowerTech that has been labbed and pushed up to a 24 pitch,  they done a lot of work to this prop,  made 2 mph difference by the lab work,  it runs consistantly 65 / 66 mph by the gps, ocassionally 68 in choppy water,  the best I've seen on the gps is 69.2 but that was with a prop that would only go fast,  took for Ever to get the air out of it to take hold, and it would blow out in any turn.  This prop will stay hooked up in turns at speed and won't blow out in choppy water like most of the others I try'd, 16 or 17 props to get to where it is now.

The prop I'm running in this last video is a 14 X 19 KonFu 4 blade that I've never seen before, it hooks up well, holds the bow up a little and won't blow out on any turn,  and it handles the boat really well,  just not as fast a prop as the PowerTech, and it's turning 5800 rpm but a Lot faster out of the hole.  I'll keep both props to play with but I don't plan on turning my motor at these rpms all that much, but it is fun.

The PowerTech is running it's speed at 4800 / 5000 rpm wide open and it handles real well, kinda flighty maybe, but still got pretty good control. 

Another thing I did to this hull,  I re-inforced it with 25 pounds of 24 ounce woven mat when I replaced the stringers, and filled the hull with foam as I layed the new floor in, it's really ridgid now and feels good on the waves,  before I done that the boat rattled and shook pretty bad in choppy water.